SIP/2.0 422 Session Timer Too Small

Hi all ,

I am trying to understand the effect on pjsip/asterisk of the message and in particular the Min-SE tag. In real life I get a Min-se with a value of 42800. What should be the effect of this tag on asterisk and especially pjsip?
Thanks in advance
G

I believe asterisk will send the INVITE again updating the Session-Expires header value to what it got in the 422 response.

Correct but then asterisk (pjsip) does not respond to 100 /180 / and 200 ok